can't find iframe plugin

Hi,
I've just upgraded to version 2,
I've been reading the forum and it seem the iframe plugin should be already installed, - and indeed the framed plugin php is in the plugins folder.--- but it doesn't appear on the site interface under plugins.

I want my blog to appear framed on my website. Instead of the plugin I have tried using this code on the page directly . Sort of works only the frame is very small. I've hidden it from the site for now but you can see it here: laurabraun.net/index.php/blog/.